How Long Do Bearded Dragons Live?
Short answer: a pet bearded dragon usually lives 10 to 15 years with the right heat, UVB light and diet. In the wild they often live only 5 to 8 years. A 6-year-old bearded dragon is about 43 in human years.
Bearded dragon age in human years
| Dragon age | About this old in human years | Stage |
|---|---|---|
| 1 year | 15 | Young adult (sexually mature) |
| 2 years | 21 | Adult |
| 4 years | 32 | Adult |
| 6 years | 43 | Adult |
| 8 years | 55 | Middle aged |
| 10 years | 66 | Senior |
| 12 years | 77 | Senior |
| 15 years | 94 | Very old |
Based on maturity at about 1 year and a typical lifespan of 10 to 15 years (the method in the pet age calculator).
How big do bearded dragons get?
Adults usually reach 16 to 24 inches (40 to 60 cm) from nose to tail tip, most of that growth in the first year. Adults need an enclosure of at least 4 × 2 × 2 ft (about 120 gallons): see bearded dragon tank size.
What shortens a bearded dragon's life
- No or weak UVB: without UVB they cannot make vitamin D3 and develop metabolic bone disease. Replace UVB tubes as the maker advises.
- Wrong temperatures: they need a basking spot of about 100-110°F (38-43°C) and a cooler end around 75-85°F (24-29°C).
- Too small an enclosure and no chance to move and climb.
- Diet: too many fatty insects (waxworms, superworms) and too few greens in adults leads to obesity and fatty liver.
- Impaction from loose sand or insects that are too large.
Signs of an old bearded dragon
Slower movement, less appetite, thinner fat pads on the head, and longer brumation (winter slowdown). A yearly check with a reptile vet helps catch problems early.
Sources: Merck Veterinary Manual (reptiles); Association of Reptile and Amphibian Veterinarians husbandry guidance. Human-year figures are a simple comparison, not a medical age.
Try the pet age calculator
Enter your own numbers below, or open the full pet age calculator with the formula and more examples.
This guide is general information, not veterinary advice. Your pet may differ: ask your vet. Terms
Frequently asked questions
How long do bearded dragons live as pets?
Usually 10 to 15 years with proper UVB, heat, space and diet.
How old is a 5 year old bearded dragon in human years?
About 38.
What is the oldest bearded dragon?
Some well-kept dragons have been reported to live close to 20 years, but 10 to 15 is the normal range.
Do bearded dragons live longer alone?
They are solitary and should be housed alone; housing two together causes stress and fights, which can shorten their lives.